T2 relaxation times of the anterolateral femoral cartilage in patients after ACL-reconstruction with and without a deep lateral femoral notch sign

Publication date: Available online 11 July 2018Source: European Journal of RadiologyAuthor(s): Cyrus Behzadi, Goetz H. Welsch, Jan-Philipp Petersen, Bjoern P. Schoennagel, Peter Bannas, Michael G. Kaul, Gerhard Schoen, Josephine Berger-Groch, Gerhard Adam, Marc RegierAbstractPurposeTo quantitatively assess T2 relaxation times of the anterolateral femoral cartilage following anterior cruciate ligament (ACL)-reconstruction with and without a positive deep lateral femoral notch sign (DLNS) at post-traumatic MRI.Materials and MethodsIn 52 patients post-traumatic MRI as well as 12 months after ACL-rupture (ACLR) and surgical treatment were analysed. In 28 patients a positive DLNS was present at post-traumatic MRI.For quantitative analysis, T2 relaxation time measurements (7 TE: 10-70 ms) were performed at time of re-evaluation. Three polygonal ROIs encompassing the full cartilage layer were placed in the anterolateral femoral cartilage. Clinical assessment included Lysholm-Tegner-Activity-Score, Rasmussen's clinical score and modified Cincinnati-Rating-System-Questionnaire. Description and differences were calculated as means and confidence intervals of means, controlled for the cluster effect of person, if appropriate.ResultsIn patients with a positive DLNS after ACLR, relaxation times in the notch region were significantly prolonged compared to patients without a positive DLNS (Δ 7.4 ms, CI: 5.6 - 9.2; p-value
Source: European Journal of Radiology - Category: Radiology Source Type: research

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BACKGROUND: Return to sport (RTS) after anterior cruciate ligament (ACL) reconstruction is a topic of current interest. The high reinjury rates reported in younger athletes may be due in part to an early RTS. PURPOSE: To determine the proportion of...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
BACKGROUND: There is limited information on the appropriate timing of return to sports after anterior cruciate ligament (ACL) reconstruction. A composite test was developed to assess the athlete's ability to return to sports after ACL reconstruction: the K...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
Individuals with anterior cruciate ligament reconstruction (ACLR) are at greater risk for accelerated post-traumatic knee osteoarthritis (KOA) [1]. Previous research indicates that approximately 50% of individuals with ACLR have KOA within 10 years of reconstruction surgery [1], and KOA risk is 3 times greater in the involved compared to uninvolved limb [2]. KOA is commonly assessed using imaging techniques such as magnetic resonance imaging, or radiograph [3]. However, these methods have limitations that preclude them from practical use for the purpose of identifying the progression of KOA, including lack of portability, ...
Source: Gait and Posture - Category: Orthopaedics Authors: Tags: Full length article Source Type: research
The return to sport (RTS) and return to competition (RTC) after anterior cruciate ligament reconstruction (ACLR) in the recreational and professionnel sports population remains a challenge. Previous level of activity, associated injuries, the type of recon...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
Individuals with an anterior cruciate ligament reconstruction (ACLR) demonstrate persistent alterations in walking gait characteristics even after completing traditional rehabilitation [1,2]. Evidence suggests that walking speed [3,4], alterations in kinetics and kinematics on the ACLR limb [5,6], and inter-limb asymmetries in these outcomes may contribute to poor long-term outcomes following ACLR [7,8]. Slower walking speed [3,4], less peak vertical ground reaction force (vGRF), [6] and lower vGRF loading rate [5] on the ACLR limb during walking associate with deleterious metabolic and compositional joint tissue outcomes ...
Source: Gait and Posture - Category: Orthopaedics Authors: Tags: Full length article Source Type: research
BACKGROUND: Few studies have evaluated the influence of anterior cruciate ligament (ACL) reconstruction on the outcome of cartilage repair. Hypothesis/Purpose: The purpose was to investigate the association between ACL reconstruction and functional outcome...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
BACKGROUND: There is insufficient knowledge about the way that concomitant injuries affect the short-term likelihood of a return to a knee-strenuous sport after anterior cruciate ligament (ACL) reconstruction. Hypotheses/Purpose: The purpose was to study w...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
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Source: Sports Orthopaedics and Traumatology - Category: Sports Medicine Source Type: research
OBJECTIVE: Anterior cruciate ligament (ACL) injury initiates a cascade of events often leading to osteoarthritis. ACL reconstruction does not alter the course of osteoarthritis, suggesting that heightened osteoarthritis risk is likely due to factors in add...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Economics of Injury and Safety, PTSD, Injury Outcomes Source Type: news
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Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
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